As an OpenStreetMap-contributor: you have to add attribution as per our license agreement: https://www.openstreetmap.org/copyright
CartoDB packages this data into tiles you can use, but that doesn't lift this requirement.
CartoDB packages this data into tiles you can use, but that doesn't lift this requirement.
1. https://github.com/montanaflynn/ishormuzopenyet/commit/70a8c...
Seems like we can't use them for free, even with attribution, unless I get a grant?